Required library edition:
Required library file: dhtmlxaccordion.js

changes object instance's size according to the outer container

For example, in case we have an object on the page, which will be used as accordion parent container:

    <div id="myAcc" style="width: 300px; height: 500px;"> </div>

Initializing accordion:

    var dhxAcc = new dhtmlXAccordionObject("myAcc");

Changing parent container's dimension:

    var parentObj = document.getElementById("myAcc");
    parentObj.style.width = "250px";
    parentObj.style.height = "400px";

Adjusting accordion:

    dhxAcc.setSizes();